<div [ng2-highcharts]="chartOptions" class="graph my-chart"
     [tooltip]="popTemplate"
     [placement]="tooltipPlacement"
     containerClass="customClass"
></div>
<template #popTemplate>
  <span style="font-size: 12px; position: absolute; white-space: nowrap; font-weight: bold; color: rgb(51, 51, 51); margin-left: 6px; margin-top: 0px; left: 8px; top: 8px;text-align: left" transform="translate(0,0)">
    <span style="font-size: 10px"></span>
    <br>
    张三: <b>33.3%</b>
    <br>
    李四: <b>13.3%</b>
    <br>
    王五: <b>20.0%</b>
    <br>
    赵六: <b>13.3%</b>
    <br>
    洪七: <b>20.0%</b>
    <br>
  </span>
</template>
